On the blog page, set at two column post excerpts with feature images all set at 300px x 225px, I find the the excerpts often skip the first column and seem to be ignoring the clearfix .css rule at the end of each excerpt block.

As a work around I have tried to edit headline length/size and the excepts text length with the “more” tag in the visual editor, but this is a rather frustrating exercise. The page with the blog is here. Another sample in a category search is here.